Boiler.



C. G. WARNER BOILER.

APPLICATION FILED JUNE 21, 19l6.

1 %39 ,546 Y Patented Sept. 11, 1917/.

IN V EN TOR,

A TTORNEY.

Clarendon, 6'. Wermen form and is made with an outlet CLARENDON G. WARNER, OF HOLYOKE, MASSACHUSETTS.

BOILER.

Specification of Letters Patent.

Patented Sept. Tl, 1931?.

Application filed. June 21, 1916. Serial No. 105,026.

To all whom it may concern Be it known that I, CLARENDON G. Van- NER, a citizen of the United States of America, and resident of Holyoke, in the county of Hampden and State of Massachusetts, have invented certain new and useful Improvements in Boilers, of which the following is a full, clear, and exact description.

This invention relates to certain new and useful improvements" in boilers, and, among other objects, it has for an aim to provide a boiler in which steam may quickly be generated thus adapting the structure .for use in connection with a wall paper remover (which adaptation has been illustrated in the drawings), as a water heater in barber shops, and for various other purposes and uses.

, The invention is described in conjunction with the accompanying drawings and is set forth in the claim.

In the drawings Figure 1 is substantially (a central vertical sectional view through the generator and showing in elevation the heater and the steaming head and its connecting hose.

Fig. 2 is a horizontal sectional view taken on line 2-2, Fig. 1.

Fig. 3 is a central sectional View on a larger scale of the safety device,

Fig. 4 being a plan view of the same.

Fig. 5 is a side elevation, on a smaller scale than Fig. 1, showing the external aspect of the incased generator.

In the drawings, A represents the generator which comprises, essentially, the boiler B which preferably is of cylindrical opening or conduit or at its top. I

- The boiler has at the bottom thereof a depending annular fluid space I) formed-by the downwardly continued outer wall d of the boiler, the return bent portion 6 and the upgardly extended portlon f, as shown in The inwardly and upwardly extended portion 7' at thebottom of the boiler is horizontally continued inwardly and is upwardly reentrant at the. portion 9 to form an inverted dish-shaped cavity at the central portion of the base of the boiler.

D D represent a plurality of pipes, which are open at their opposite ends, and each at its outer end is extended to the inner wall of the said annular space, depending at the bottom of the boiler and in open communication with the main chamber of the boiler.

Each of the said pipes is extended from its connection through the aforesaid wall f more or less nearly horizontally inwardly toward and near the center of the boiler and quite near its bottom; and it is continued upwardly in an approximately vertical limb i2 and has connection through the bottom wall of the boiler at the central portion 9 thereof.

As preferably made, the said pipes D D are formed with downwardly and then up wardly return bent portions z i to give increased length in these conduits for circulation and also increased heating surfaces.

F represents a burner or heater of any suitable kind, located beneath the base of the boiler at which the aforementioned pipes D D are provided.

From this burner the water in the boiler is heated to the suitably high temperature for the generation of steam,-the formation of the steam being accelerated by the circulation of the water flowing from the annular space through the convergent pipes D D and upwardly returning into the bottom of the boiler.

The steam when generated to the required pressure is permitted by opening the cock j to I pass from the outlet a of the boiler through the flexible hose is to the steaming head G with which the hose at its free end is connected, and which steaming head is moved or operated through means of a pole 'm pivotally connected thereto and as already known for employment in connection with apparatuses of this character.

The boiler is somewhat widely surrounded by a shell or inclosing casing 0 between which and the boiler is a completely surrounding air space within which the products of combustion from the burner may be inclosed or in a measure confined for the augmentation of the heating action.

L represents a water gage.

Through suitable supporting parts or connections comprised in the apparatus, the boiler issupported or suspended concentrically within the casing 0. i

The circular space surrounded by the walls of the inclosed annular space 1) within the boiler and havin the further reentrant central formation, forms, as it were, a trap or retainer for the heat from the burner, or in other words, a means for the concentration and confinement \of the heat :to which the pipes D D are subjected; and such formation at the bottom of the boiler is effective for increasing the heating capacity of the boiler, or rendering the latter more easily susceptible to the heating efiect.

The boiler is provided at its top with a safetydevice whereby under a too high pressure of steam the liabilityof bursting-or 18X- plosion is obviated.

This device comprises. an upwardly open cylindrical casing P having an annular slightly:upstanding wall g:to form a valve seat surround-ingthe opening rthrough the bottom ofithe casing and which bottom portion ofxthe casing has a screw thread connection with the coupling with which the outlet av and the hose are connected.

its position concentrically within the lower The said annular valve seat wall 9 has portion of the casing P;

:R1 represents iawcy-lindrical weight or gravitative valve which has a close sliding fit within the casing, has the lower portion 22 thereof of downwardly convergent form, and the base-thereof is formed to seat on and normally close said valve-seat.

By reason of utheconvergent lower end formation of the weighty valve, an annular space dis created between the weight valve :and the lower portion of the wall of the casing.

The weight valve R has a plurality of vertical gi'looves u in its sides whichyextend fromhtheatop-lof the valve to and terminate at'vthe convergent lower surface portion of the valve and form open communication between :the [annular space it :and the atmosphere; to which the top of the casing opens.

-.Upon the pressure in the boiler becoming too great, and suflicient to overcome the predetermined resistance of the weight valve.,:the latter is forced from itsseat, upwardly, whereupon the steam from the boiler may pass through the uncovered valve seat opening to the annular space a and thence for escape through the vertical grooves or ducts v.

20 represents a bar pivoted on one'side of the=ztop ofthec-asing and adapted normally a to have ,a position across the open top of the c sing to constitute .a stop or means for the limitation of "the upward movement of the weight valve. 7 v

The valve is provided with a shortlength of cable or chain a, one end of which is connectedto an eye member of'the valve, and this constitutes aconvenient and easymeans for lifting the weight-valve out from and clear of the casing, as permitted by the swinging to one side of. the pivoted bar, and

flqpies oi this patent may I be I obtained 491' as desired -to be done 'at times when the boiler ,isrto have the water supply entered or replenished therewithin.

It istohe ,especiallyunderstood that the principal and mos'timportant portion of my present invention resides in a boiler having pipes which are open at both of the ends thereofand which have communication'with located beneath the generator and so arranged and adapted as to have'the flame thereof enter between'the' closely arranged upturned inner end portions "ofthe .con-

verged pipes and to impinge directly on said pipes, especially attheirinner end portions.

In this apparatus the burner flame, which may be a comparatively narrow or contracted one,1s operative upon considerable l1eating-Surfaoes comprised inthe pipes and at the bottom of the burner for jquiclrly and highly heating circulating water, for the production of steam, in a most economical manner. r

I claim In combination with-an upright casing closed at its topwand provided in the latter with draft openings, of a boiler supported within the upper portion of the casing whereby a heater maybe arranged beneath the boiler forgenerating steam therein, said boiler comprising a hollow cylindrical body closed at its top andbottom, the bottom of the boiler having a depending, annular fluid space and concentrically arranged, upwardly depressed center, anda plurality of radially disposed pipes extending horizontally and inwardly from the annular fluid space in proximity and parallel to the bottom of the boiler, the inner end of'each pipe terminating in a' U trap which extends below the plane of the lower edge of said annular fluid space, the inner leg ofeach U-trap eX tending vertically in a straight line through the upwardly depressed center of theboiler bottom, saidU-traps and inner' legs being arranged in close relation for direct contact with the heated gases from an underlying heater.

Signed by me at Springfield, IMass, in presence of twosubscribing witnesses,

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'Witnessesz i l/VM. S. BELLOWS,- G. R. Dnrsoonn, 

